Air-heating unit for buildings



Feb, 7 1956.? THQMPSQN 2,496,5(95

AIR HEATING UNIT FOR BUILDINGS Filed Dec. 10, 1945 fizz vr. m m

Patented Feb. 7, 1950 UNITED STATES PATENT OFFICE AIR-HEATING UNIT FORBUILDINGS Floyd L. Thompson, Houston, Tex.

Application December 10, 1945, Serial No. 634,036

This invention relates to a heating unit for buildings.

An object of the invention is to provide a heating unit of the characterdescribed specially designed for the purpose of heating buildings andhas been more particularly designed for heating the various rooms of abuilding from a single unit.

It is another object of the invention to provide a heating unit of thecharacter described which is adapted to take in the cool inside air andheat it and distribute the heated air to the room, or rooms, to beheated.

A further object of the invention is to provide a compact heating unitthat may be installed in the garret, or other unused space, of abuilding and which is of such construction that it may be cheaply andeasily installed, which has few working parts and which is not liable toget out of repa1r.

A further object of the invention is to provide in a heating unit of thecharacter described an air cooled heater of novel construction.

With the above and other objects in view the invention has particularrelation to certain novel features of construction, arrangement of partsand use, examples of which are given in this specification andillustrated in the accompanying drawings, wherein:

Figure 1 is a horizontal sectional view of the unit.

Figure 2 is a vertical, sectional view taken on the line 2 2 of Figure1.

Figure 3 is a cross-sectional view taken on the line 3-3 of Figure 2.

Referring now more particularly to the drawings wherein like numerals ofreference designate the same parts in each of the figures, the nu meralI designates an outer jacket whose interior is completely enclosed andwithin said jacket and spaced from the top and bottom and the side wallsthereof and from one of the end walls thereof there is the heaterhousing 2, one end of which extends through the other end wall of thejacket, as clearly shown in Figures 1 and 2. A circulating air space 3is thus provided within the jacket all around the housing so that thetemperature of the jacket will remain relatively low during theoperation of the unit.

The bottom of the jacket, at one end, has a cold air inlet 4 into theair circulating space 3.

Within the housing 2 there is a furnace 5 which encloses a combustionchamber 6 and on opposite sides of the furnace are the heat exchangerunits 1, 1. Leading from one end of the furnace and lClaim. (01.126-110) entering the respective heat exchanging units are the tubularhot gas conduits 8, 8 through which the'hot gases in the furnace may beconducted into the respective heat exchangers and leading upwardly fromthe other ends of the heat exchangers through the housing and jacket arethe outlet vents 9, 9 through which the products of combustion mayescape. The furnace and heat exchangers are constructed of any suitablematerial, preferably, of copper bearing steel. The furnaoe and the heatexchangers are preferably disposed vertically, as more clearly shown inFigure 3, and are spaced the required distance apart and for conveniencein construction and assembly are initially formed of halves whosemargins may be welded together in erection, as also indicated in Figure3.

As hereinabove indicated, one end of the housing 2 is open and extendsthrough the corresponding end of the jacket. This is the discharge endIf! of the housing through which the hot air is discharged. At the otherend the furnace is provided with a tubular extension I! which enters thecombustion chamber from beneath, as indicated in Figures 1, 2 and 3, andwhose outer end is open.

The outer end of this extension extends through the corresponding endwall of the jacket and within said extension there is a suitable fuelburner l2 which is fed by the supply pipe l3 which enters through theouter end of the extension ll. Either gas or liquid fuel may be utilizedto form a combustible mixture with the air entering the combustionchamber 6 of the furnace.

Mounted on the inner end wall of the housing 2 there are the fanhousings l4, l4 and within these housings are the suction fans, as 55,which are driven by a suitable electric motor 16, preferably, locatedbetween the fan housings and to whose shaft the suction fans are fixed.These fans will draw the air to be heated in through the inlet 4 andwill circulate it about the housing 2 and will discharge it through thehousing about the furnace 5 and the heat exchangers 7 and out throughthe outlet 10.

It is preferable to provide baflies 28, 28 in the respective heatexchangers between the hot gas conduits B and the vents 9 so as to causea better circulation of gases through the heat exchangers.

The drawings and description are illustrative merely while the broadprinciple of the invention will be defined by the appended claim.

What I claim is:

In a heating unit for buildings, a heater comprising, an outer jackethaving a bottom cold air inlet adjacent one end wall, a housing withinthe jacket spaced from the top, bottom, side walls and the other endwall of the jacket and having a hot air outlet through said one end wallof the jacket, a centrally located furnace in the housing and extendingsubstantially from end to end thereof and enclosing a combustionchamber, similar heat exchangers in the housing on opposite sides of thefurnace and of substantially the same length as the furnace and spacedtherefrom and also spaced from the jacket, hot gas conduits leading fromone end of the combustion chamber into the corresponding ends of theheat exchangers, vents at the other ends of the heat exchangers leadingoutwardly through the housing and jacket, intermediate baflles in theheat exchangers, a tubular extension whose outer end is open and whichextends through the jacket and enters the end of the furnace remote froma the discharge end of the housing, a burner in said extension arrangedto supply a combustible mixture to the combustion chamber, blowerREFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,190,997 Somers Feb. 20, 19402,234,590 Evans et a1 Mar. 11, 1941 2,259,187 Turnbull Oct. 14, 19412,263,098 Mueller Nov. 18, 1941 2,267,905 Frantz Dec. 30, 1941 2,284,542Stephens May 26, 1942 2,300,848 Shelton Nov. 3, 1942 2,302,859 Hare Nov.24, 1942 2,389,265 Livar Nov. 20, 1945.

